Dynamic Response of No-Insulation and Partial-Insulation Coils for HTS Wind Power Generator
- Authors
- Song, Jung-Bin; Hahn, Seungyong; Kim, Youngjae; Miyagi, Daisuke; Voccio, John; Bascunan, Juan; Lee, Haigun; Iwasa, Yukikazu
- Issue Date
- 6월-2015
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Electromagnetic force; equivalent circuit model; no-insulation; partial-insulation; wind power generator
- Citation
- IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, v.25, no.3
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
- Volume
- 25
- Number
- 3
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/93496
- DOI
- 10.1109/TASC.2014.2384739
- ISSN
- 1051-8223
- Abstract
- In this paper, we present results, experimental and numerical, of the electromagnetic interaction forces between pairs of racetrack coils under time-varying conditions. Three turn-to-turn insulation designs were applied to wind three racetrack coils with GdBCO coated conductor: 1) no insulation (NI); 2) partial insulation (PI) of a polyimide layer every eight turns; and 3) insulation (INS) of a polyimide layer between each, i.e., NI, PI, and INS racetracks. Two racetrack pairs, namely, NI-INS and PI-INS, were tested for their interaction forces, measured with load cell under current-ramping conditions in a bath of liquid nitrogen at 77 K. Good experimental and simulation results validate our equivalent circuit model to compute interaction forces of PI-INS racetrack pair. Overcurrent test of NI and PI coils, where each racetrack coil was charged above critical current (I-c), was also performed to compare coil stability. This result implies that, although the PI winding technique improves the dynamic response, stability will be somewhat compromised.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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